Exterminating the Dynamic Change Bug - A Concrete Approach to Support Workflow Change (2001)
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@MISC{Aalst01exterminatingthe,
author = {W.M.P. van der Aalst},
title = {Exterminating the Dynamic Change Bug - A Concrete Approach to Support Workflow Change},
year = {2001}
}
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Abstract
. Adaptability has become one of the major research topics in the area of workflow management. Today's workflow management systems have problems dealing with both ad-hoc changes and evolutionary changes. As a result, the workflow management system is not used to support dynamically changing workflow processes or the workflow process is supported in a rigid manner, i.e., changes are not allowed or handled outside of the workflow management system. In this paper, we focus on a notorious problem caused by workflow change: the "dynamic change bug" (Ellis et al., 1995). The dynamic change bug refers to errors introduced by migrating a case (i.e., a process instance) from the old process definition to the new one. A transfer from the old process to the new process can lead to duplication of work, skipping of tasks, deadlocks, and livelocks. This paper describes an approach for calculating a safe change region. If a case is in such a change region, the transfer is postponed. Keyw...
